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holmes.go
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holmes.go
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package main
import (
"fmt"
"log"
"net"
"net/http"
"os"
"github.com/justsocialapps/holmes/analytics"
"github.com/justsocialapps/holmes/assets"
"github.com/justsocialapps/holmes/publisher"
"github.com/justsocialapps/holmes/tracker"
"gopkg.in/Shopify/sarama.v1"
)
//go:generate scripts/prepare_assets.sh
//go:generate go run scripts/include_assets.go
//go:generate gofmt -w assets/assets.go
func provideTrackingParams(params tracker.TrackingParams, handler func(params tracker.TrackingParams, w http.ResponseWriter, r *http.Request)) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
handler(params, w, r)
}
}
func startServer(host string, port string) {
listener, err := net.Listen("tcp", host+":"+port)
if err != nil {
log.Fatal(err)
}
log.Printf("Holmes %s running on %s:%s", version, host, port)
log.Println(assets.Bannertxt)
err = http.Serve(listener, nil)
if err != nil {
log.Fatal(err)
}
}
func initLogging(logfileName string) {
logFile := os.Stdout
if logfileName != "" {
var err error
logFile, err = os.OpenFile(logfileName, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
if err != nil {
log.Fatal(err)
}
}
log.SetOutput(logFile)
sarama.Logger = log.New(logFile, "[Sarama] ", log.LstdFlags)
}
func main() {
if printVersion {
fmt.Println(version)
return
}
initLogging(logfileName)
trackingChannel := make(chan *tracker.TrackingObject, 10)
trackingParams := tracker.TrackingParams{
TrackingChannel: trackingChannel,
AnonymizeIP: anonymizeIP,
}
go publisher.Publish(trackingChannel, kafkaHost, "tracking")
http.HandleFunc("/track", provideTrackingParams(trackingParams, tracker.Track))
http.HandleFunc("/analytics.js", analytics.Analytics)
startServer(listenHost, listenPort)
}